Sunderland captain, Granit Xhaka, could be set for a shock move to Chelsea this summer.
According to the Daily Mail, the Blues are keen on signing the Swiss midfielder.
The Black Cats are however insisting that Xhaka is not for sale and they have not received any offers.
Xhaka played for new Chelsea manager, Xabi Alonso, at Bayer Leverkusen and the new boss is looking to add players with proven Premier League experience.
However, Xhaka turns 34 in September, so Chelsea would not want to pay too much.
He is under contract at the Stadium of Light until 2028 but is understood to be keen on linking up again with Alonso and being part of a new project.
Sunderland signed him for £13million last summer and he played a key part in keeping the club in the Premier League.
